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Adaptation and psychometric properties evaluation of the Greek version of WHODAS 2.0. pilot application in Greek elderly population

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Abstract

The World Health Organization Disability Assessment Schedule (WHODAS 2.0) is the official generic assessment instrument of WHO for disability and health. It is considered to be applicable across cultures in adult populations. The paper describes the development, cultural adaptation and validation of the Greek version of the official WHODAS 2.0, 36-item assessment schedule. The research tested the psychometric properties of this version in order to identify if it can be considered a valid and reliable instrument for measuring health and disability in the Greek population and culture. Field test studies were conducted in two hundred participants of the general population, aged over 61 years old, in a Greek Open Care Centre for the elderly. The study was carried out between July 2015 and September 2016. The linguistic adaptation of the original instrument was performed according to the most recent guidelines. Ratings of the different items were statistically analyzed to investigate the construct, criterion and concurrent validity and reliability of the instrument. Construct validity is confirmed in the Greek version of WHODAS 2.0. Concurrent validity is well established between the scores of WHODAS 2.0 and SF-36 v2. Cronbach’s α (0.673–0.901) and ICC (0.793–0.885) values indicate satisfactory reliability. The study supports the validity and reliability of the official Greek version of WHODAS 2.0, which can be used to assess effectively the quality of life and disability levels of the intended population and inform policy-making. Findings will be further tested in larger and diversified samples in subsequent parts of the study.

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Authors and Affiliations

  1. Department of Informatics, Technological Educational Institute of Athens, Ag. Spyridonos, 12243, Aigaleo, Greece

    Yiannis Koumpouros

  2. Department of Medical Laboratories, Technological Educational Institute of Athens, Aigaleo, Greece

    Effie Papageorgiou

  3. Department of Public Health and Community Health, Technological Educational Institute of Athens, Aigaleo, Greece

    Evanthia Sakellari, Xristos Prapas, Demetra Perifanou & Areti Lagiou

Authors
  1. Yiannis Koumpouros
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  2. Effie Papageorgiou
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  3. Evanthia Sakellari
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  4. Xristos Prapas
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  5. Demetra Perifanou
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  6. Areti Lagiou
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Correspondence to Yiannis Koumpouros.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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Informed consent was obtained from all individual participants included in the study.

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Koumpouros, Y., Papageorgiou, E., Sakellari, E. et al. Adaptation and psychometric properties evaluation of the Greek version of WHODAS 2.0. pilot application in Greek elderly population. Health Serv Outcomes Res Method 18, 63–74 (2018). https://doi.org/10.1007/s10742-017-0176-x

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  • DOI: https://doi.org/10.1007/s10742-017-0176-x

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